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Given the function f (x) = log a ^ (x ^ 2-2x + 3) (a is greater than 0, a is not 1), when a belongs to [0,3], f (x) is greater than - 1, find the value range of real number a A is the base. Find the value range of A
When a belongs to [0,3], it should be "when x ∈ [0,3]". If f (x) = log a ^ (x 178; - 2x + 3) x 178; - 2x + 3 = (x-1) 178; + 2 ＞ 0, let u = x 178; - 2x + 3, then f (x) = log a ^ u x ∈ [0,3] 2 ≤ u ≤ 6
If loga 3 / 4 is less than 1 (a is greater than 0, and a is not equal to 1), find the value range of real number a
When a > 1
Y = loga x is monotonically increasing on (0, infinity) and y = loga 3 / 4 < 1 when x = 1 and Y1
When 0
If (loga3 / 4) &;
（loga3/4)^2
If the real number a satisfies loga (2) > 1, then the value range of a is
loga(2)>1
That is, loga (2) > loga (a)
If 0
RELATED INFORMATIONS
- 1. If loga (1 / 3) 0, a ≠ 1), then the value range of real number a is________ . Another small question is whether 3 ^ 2 is greater than or less than x if log3x is less than 2
- 2. The inequality | x + 1x | > | a − 5 | + 1 holds for all non-zero real numbers x, then the value range of real number a is______ ．
- 3. If three points a (3,1), B (- 2, K) and C (8.1) can form a triangle, the value range of real number k can be obtained
- 4. If the inequality | X-2 | - | x + 2 | ≥ a, then the value range of real number a is
- 5. a. If B, u are positive real numbers, and 1 / A + 9 / b = 1, then a + B ≥ u is constant
- 6. Let f (x, y) = x + Y-A (x + 2 * (2XY) ^ 0.5, where x and y are positive real numbers. If f (x, y) is greater than or equal to zero for any X and y, the range of a is obtained?
- 7. Formula and derivation of coordinates of parabola vertex
- 8. Why is the equation of a line passing through point a (x0.y0) and parallel to the line ax + BX + C1 equal to 0 generally: a (x minus x0) plus B (y minus Y0) equals zero?
- 9. Point a (x0, Y0) is on the right branch of hyperbola x24 − y232 = 1. If the distance from point a to the right focus is equal to 2x0, then x0=______ ．
- 10. Linear equation problem: solve the linear equation parallel to the point a (x0, Y0) and the line ax + by + C = 0
- 11. Given that a > 0 and a is not equal to 1, f (x) = x ^ 2-A ^ x, when x belongs to (- 1,1), all f (x)
- 12. It is known that a, B and C are the opposite sides of the three internal angles a, B and C of △ ABC, and a, B and C form an arithmetic sequence, B = 60 °, then the shape of △ ABC is______ ．
- 13. It is known that the opposite sides of the three inner angles a, B and C of △ ABC are a, B and C respectively. If a, B and C form an arithmetic sequence and 2cos2b-8cosb + 5 = 0, the size of angle B is calculated and the shape of △ ABC is judged
- 14. Y = √ loga ^ (x-1)
- 15. Given f (x) = loga (x + 1-A), find the set of values that make f (x) > 1
- 16. If a & # 178; > b > a > 1, compare log B B / A, log B a, log a B
- 17. A = log (3) π B = log (7) 6 C = log (2) 0.8 which is bigger,
- 18. If log3 (2) = A and 3 ^ B = 5, then a and B are used to denote that the root of log (3) is 30
- 19. 2. If x ∈ a = > x ∈ B, then the relation between a and B is 1. If loga 3 > logb 3 > 0, A.0
- 20. F is the focal point of the parabola y2 = 2x, m (3.2), P moves on the parabola, when PM + PF is the minimum, the coordinates of point P This is the content of elective 2-1 in senior two